 He was promoted to Professor and Distinguished Professor in Science on May, 1997 and Sep. 2001 respectively.He was elected as the Fellow of Institute of Electrical and Electronics Engineers ins 2001 for "contributions to free-space terahertz optoelectronics".He has been involved in research using Terahertz radiation, a part of the spectrum between microwaves and infrared, and the traditional bounds of electronics, and photonics.